Preface: Flow of rocks - A Special Issue celebrating the contribution of Paul F. Williams to mentoring

摘要

This is the second Special Issue of this Journal dedicated to Paul F. Williams. The first one was a double issue published in 2001 (volume 23, Numbers 6/7) entitled Evolution of Structures in Deforming Rocks, honouring Paul's scientific career. The current issue more specifically celebrates his contribution to mentoring. The papers in this issue are mostly from a special session at the 2009 Joint Assembly in Toronto of the American Geophysical Union, the Geological Association of Canada and five other geoscience organizations. We call the issue Flow of Rocks, after the title of a graduate course that Paul offered for over two decades.